➤ Question :
By selling 90 ball pens for Rs. 160, a person losses 20%. How many ball pens should be sold for Rs. 96 so as to have a profit of 20%.
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100% -20% = 80%
80% = Rs 160
1% = 160/80
= 2
100% = 2*100
=200
120% = 2*120
= 240 (Answer)
80% = Rs 160
1% = 160/80
= 2
100% = 2*100
=200
120% = 2*120
= 240 (Answer)
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